12 March 2007
Harriet Beecher Stowe (of Uncle Tom Cabin's Fame) is enumerated in 1860 with her family---but the last name certainly looks like Stone in the image shown in this post.
Think about how your ancestor's name might have been written when searching in the index for her. It might be that an incorrect spelling might not be as "obvious" as you think. Search the 1860 Census at Ancestry.com for your relative---who may also be hiding under an alternate surname.